Combined harrow and pulverizer



(No Model.) 2 Sheets-Sheet l.

J. F. STARK.

GOMBINBD HARROW AND PULVBRIZER. No. 385,382. Pa,tented July 3, 1888.

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(No Model.) 8 2 Sheets-Sheet 2.

' J. F. STARK.

COMBINED HARROW AND PULVERIZER. No. 385,382. Patented July 3, 1888.

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- from the bars 13 O and is slotted at its front for the attachment ofa suitable tongue or draftplate.

JONATHAN F. STARK,

or LEOTA, INDIANA.

COMBlNED HARROW AND PULVERIZER.

SPECIFICATION forming part of Letters PatentNo. 385,382, dated July 3, 1888. Application filed February 25, 1888. Se1ialNo.2G5,2-i4. (No model.l

ToaZZ whom it may concern.-

Be it known that I, JONATHAN F. STARK, a eitizeii of the United States, residing at Leota, in the county of Scott and State of Indiana, haveinventcd a new and useful Improvement in Combined Harrow and Pulverizer, of which the following is a specification.

My invention has reference to combined harrows and pulverizers; and it consists in the improvements hereinafter described, whereby a simple and durable machine is provided that will efficiently harrow and pulverize.

In the accompanying drawings,forming part of this specification, Figure 1 is a side elevation of a machine embodying my improvements, one of the carrying-wheels being removed to more clearly disclose the relative position of parts. Fig. 2 is a plan view of the machine. Fig. 3 is a longitudinal section on the dotted line a: :0, Fig. 2. Fig. 4 is a detail view of a portion of the, cylinder, showing the spring-teeth.

The supporting-frame of the machine coinprises the side bars, A, and rear and front bars, B O. A central bar, D, extends longitudinally Each side bar, A, is slotted longitudinally to receive a large gear-wheel, E, mounted upona stub axle, F, bearing in the side bar and carrying one of the main carrying-wheels G upon its outer projecting end. The periphcry of each carrying-wheel G is ribbed to increase its tractive effect, Two independent shafts, H I, bear in the side and central bars in line with each other,and said shafts are designedto rotate independently of each other. A cylinder, K L, is mounted upon each shaft, and a gear-wheel, a, is mounted upon each shaft,so as to rotate in the slot of the side bars.

Astandard, b, is located on each side bar and is slotted,so that the gear-wheel E can rotate without interference, and the upper end of said standard is provided with atongue, G, havingaperloration or perforations. A yoke, d, is pivotally connected to the rear part ofeach side bar, A, and is inclined, so that the tongue 0 of the standard extends through a slot formed in the upper portion of the yoke. The latter, adjacent to said slot, is perforated to register with the openings in the tongue, and the parts are secured together by means the end bar.

of a bolt or pin,f, which is passed. through said registering openings. A gear-wheel, J, is mounted in the yoke-frame, and when the latter is secured, as previously described, the gear-wheel J meshes both with the wheels E and a.

The cylinders K L are provided with a se ries of spring-teeth, N, arranged in line with each other around the drum, and each composed of a wire having one end embedded in the drum and its projecting portion looped, as indicated in Fig. 4. A spring rod or rods, 2', extend from the rear bar of the frame and extend between the parallel rows of teeth, so as to removethe trash from the teeth and cylinder.

For somepurposes the cylinders will be provided with a series of rigid teeth, n,which are arranged alternate1y,and are pointed and beveled at their ends, as shown.

A short standard, p, is located in the central bar, and centrally pivoted to this standard is a lever, M, the rear end of which carries a cross-bar, N, perforated at'each end for the passage of vertical guide-bars 0, located on Cylindrical shanks P of casterwheels Q extend through the rear bar, and are connected at their upper ends to the cross-bar N, so that the casters can be raised or lowered by the corresponding movements of said bar N. A notched standard, R, located on the central bar near the front of the machine, is designed to have the end of the lever engaged by the notches.

In operation the machine is drawn forward, and each carrying-wheel revolves its gearwheel'E to transmit motion through the gearwheel J to the adjacent wheel a. This latter wheel of course revolves its drum in a dircc tion corresponding with the direction of rotation of the main carrying'wheel. The wheels with spring-teeth act as harrows, While the wheels with rigid teeth serve as pulverizers, the spring-teeth serving to harrow and pulverize. The character of the said spring-teeth is such that should they strike an obstruction they will yield, so as to pass the same. The presence of the intermediate gear-wheel insures the revolution of the drums in a manner that will tend to throw the earth rearwardly, thus preventing banking in front of the rollers. The arrangement of gearing is l'OO . attendants seat will be so located as to be within convenient reaching distance of both the central lever and the yoke-frames in order that they may be properly operated.

In some cases I may find it desirable to dispense with the gear-wheel J, and instead gear the wheels G and a direct.

The relative sizes of the transmitting-gears are'such that the drums are revolved ata higher rate of speed than the motion of the carryingwheels, thus having a greater effect upon the clods. By having the drums revolve in the same direction as the carrying-wheels their rotation tends largely to assistin the movement of the machine,and thereby decrease the draft.

I claim- 1. The combination, with the main frame, of the drums mounted therein, the carryingwheels, the gear-wheels E on the shafts of the carrying-wheels, the gear-wheels a on the shafts of the drums, the yokes d, pivoted to the main frame, and the gear-wheel J, carried by said yokes and adapted to mesh with the gearwheels E and a, as set forth.

2. The combination of the main frame, the drums mounted therein, the gear-wheels a on the shafts of the drums, the carryingwheels, the gear-wheels E on the shafts of the carrying-wheels, the standards b on the main frame,the yokcs d,pivoted at their lower ends to the main frame and adjustably connected at their upper ends to the standards b,and the gear-wheel J, carried by the yokes and adapted to mesh with the gear-wheels E and a, as set forth.

3. The combination of the main frame having the slotted side bars, the drums mounted in the said frame, the gear-wheels a on the shafts of the drum projecting through the slot ted side bars of the main frame,the stub shafts F, mounted in the said side bars, thelcarrying-Wheels mounted on said shafts, the gearwheels E,monnted on said shafts and projecting through the slotted side bars, the standards b, erected on the side bars,the yokes d, pivoted'at their lower ends to the side bars and adj ustably secured at their upper ends to the standards I), and the gear-wheel J, carried by said yokes and adapted to engage the gearwheels E and a, as set forth.

In testimony thatIclaim the foregoing as my own I havehereto affixed my signature in presence of two witnesses.

JONATHAN i STARK.

Witnesses:

J AMES M. DAVIS, ll/IARCUS GRAY. 

